The native rodent has been fighting extinction since 1876 when North American grey squirrels were introduced to the UK. The foreign squirrels carry a pox virus which spreads quickly among populations and is deadly to reds.

As well as revealing an increase in the amount of countryside occupied by red squirrels, their results also show a 17% decrease in the distribution of grey squirrels.

It’s the best news for red squirrels in more than 100 years. They’ve even been spotted in Ambleside, Cumbria for the first time in a decade.

The organisation says reds are flourishing because of careful grey squirrel control. Teams of professional rangers, gamekeepers and volunteers have been trapping and shooting the greys since January 2012. It’s also thought that last year’s poor weather has had an averse effect on grey squirrel populations.

‘It’s still early days, but it’s really encouraging to have goodish news to report after a century of doom and gloom for red squirrels,’ says Nick Mason, RSNE project manager.

The squirrel study is still ongoing and Nick is calling for wildlife fans to share reports of their squirrel sightings on the RSNE website and to get involved with their local red squirrel group.

‘The project’s success is thanks to the support of Biffa and our committed volunteers,’ he says.